Seller's Description
This Far East 31’ Marine was built 1971 in Yokosuka, Japan, and is located in Fort Myers, FL
The MARINER 31 was the first fiberglass hull built by Far East Yachts. The decks and cabin trunk were of plywood covered with fiberglass.
Construction: GRP Hull, Plywood Deck, Spruce Spars Ketch Rigged, Long Keel, Cutaway Forefoot
Steering is worm drive and all looks in good condition Heavy mahogany and brass steering wheel
Hull is solid fiberglass with matt and roven to highest standards. Hull insulated inside and painted Hull exterior is in good condition, no evidence of damage from grounding Rudder is wood and in good condition Cutlass bearing is tight 2 Blade propeller in good condition Stainless driveshaft about 1” Decks are fiberglass covered marine plywood Cabin sides are fiberglass covered 1” marine plywood Coamings: African Mahogany Cockpit: Marine plywood with Teak planking over Bowsprit: Spruce with stainless steel catwalk Interior Philippine Mahogany in good condition
All Dacron Sails in good condition Genoa on roller furling, seems like a 150% sail Working jib Mainsail Mizzen
Sail Area (reported): 482.00 ft2 Draft (max): 3.67 ft Displacement: 11,500 lb Ballast: 5,000 lb Hull Speed 6.8 knots Builder: Far East Yachts (Japan)
This is a nicely appointed yacht finished in the Herreshoff Style, well crafted Mahogany woodwork inside and out. Nice roomy main cabin with lots of storage.
Autopilot: Raymarine SPX5 Self-Steering: Sailomat 601
Electronics
Raymarine i50 In-Hull Depth Sounder Icom M402 VHF Garmin GPS76CX 4 Solar Panels for a total of 280 W 4 Trojan T-105s House Bank
Anchoring
35 lb CQR 20 lb Collapsible Danforth 15 lb Bruce
Specs
- Designer
- C. Oberly
- Builder
- Far East Yachts
- Associations
- ?
- # Built
- ?
- Hull
- Monohull
- Keel
- Long
- Rudder
- ?
- Construction
- FG with wood deck and cabin
Dimensions
- Length Overall
- 30′ 8″ / 9.4 m
- Waterline Length
- 25′ 5″ / 7.8 m
- Beam
- 9′ 8″ / 3 m
- Draft
- 3′ 8″ / 1.1 m
- Displacement
- 11,500 lb / 5,216 kg
- Ballast
- 5,000 lb / 2,268 kg
Rig and Sails
- Type
- Ketch
- Reported Sail Area
- 482′² / 44.8 m²
- Total Sail Area
- 396′² / 36.8 m²
Mainsail
- Sail Area
- 177′² / 16.5 m²
- P
- 29′ 9″ / 9.1 m
- E
- 11′ 10″ / 3.6 m
- Air Draft
- ?
Foresail
- Sail Area
- 218′² / 20.3 m²
- I
- 34′ 3″ / 10.4 m
- J
- 12′ 9″ / 3.9 m
- Forestay Length
- 36′ 6″ / 11.1 m
Mizzen
- PY
- 18′ 0″ / 5.5 m
- EY
- 9′ 6″ / 2.9 m
Auxilary Power
- Make
- Universal
- Model
- Atomic 4
- HP
- 30
- Fuel Type
- Gas
- Fuel Capacity
- 38 gal / 144 l
- Engine Hours
- ?
Accomodations
- Water Capacity
- 40 gal / 151 l
- Holding Tank Capacity
- ?
- Headroom
- ?
- Cabins
- ?
Calculations
- Hull Speed
-
7.0 kn
Classic: 6.77 kn
Hull Speed
The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.
Formula
Classic hull speed formula:
Hull Speed = 1.34 x √LWL
A more accurate formula devised by Dave Gerr in The Propeller Handbook replaces the Speed/Length ratio constant of 1.34 with a calculation based on the Displacement/Length ratio.
Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio.311
Hull Speed = Max Speed/Length ratio x √LWL
- Sail Area/Displacement
-
15.1
<16: under powered
Sail Area / Displacement Ratio
A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.
Formula
SA/D = SA ÷ (D ÷ 64)2/3
- SA: Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
- D: Displacement in pounds.
- Ballast/Displacement
-
43.5
>40: stiffer, more powerful
Ballast / Displacement Ratio
A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.
Formula
Ballast / Displacement * 100
- Displacement/Length
-
309.9
300-400: heavy
Displacement / Length Ratio
A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.
Formula
D/L = (D ÷ 2240) ÷ (0.01 x LWL)³
- D: Displacement of the boat in pounds.
- LWL: Waterline length in feet
- Comfort Ratio
-
31.5
30-40: moderate bluewater cruising boat
Comfort Ratio
This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.
Formula
Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam1.33)
- D: Displacement of the boat in pounds
- LWL: Waterline length in feet
- LOA: Length overall in feet
- Beam: Width of boat at the widest point in feet
- Capsize Screening
-
1.7
<2.0: better suited for ocean passages
Capsize Screening Formula
This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.
Formula
CSV = Beam ÷ ³√(D / 64)
- Beam: Width of boat at the widest point in feet
- D: Displacement of the boat in pounds
Notes
The MARINER 31 was the first fiberglass hull built by Far East Yachts. The decks and cabintrunk were of plywood covered with fiberglass.
Similar to MARINER 32 and FUJI 32.
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